Welcome to our dedicated page for U. S. Steel SEC filings (Ticker: X), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
United States Steel Corporation filings document a completed corporate-status transition as well as the securities and obligations affected by that transition. The Form 8-K record describes the June 2025 merger in which U. S. Steel survived as a subsidiary of Nippon Steel North America, together with related material-agreement and national-security agreement disclosures.
The Form 15 filing records the termination of registration or suspension of reporting duties under the Securities Exchange Act for U. S. Steel common stock and its 6.650% Senior Notes due 2037 and 6.875% Senior Notes due 2029. The filing also identifies the covered securities and states that no other class remained subject to a continuing Section 13(a) or 15(d) reporting duty.
United States Steel Corporation has filed Post-Effective Amendments to deregister all remaining unissued shares from multiple S-8 Registration Statements following its merger with Nippon Steel North America, which became effective on June 18, 2025.
The deregistration affects 24 different Registration Statements covering various employee benefit plans including:
- 2016 Omnibus Incentive Compensation Plan
- Savings Fund Plan for Salaried Employees
- 401(k) Plan for USW-Represented Employees
- Big River Steel 401(k) Plan
- Stock Incentive Plans and other compensation programs
This filing is a result of the merger agreement dated December 18, 2023, where 2023 Merger Subsidiary Inc. merged with U.S. Steel, with U.S. Steel surviving as a wholly owned subsidiary of Nippon Steel North America. The company is terminating all offerings under these Registration Statements as part of the merger completion.
United States Steel Corporation (NYSE: X) filed multiple Post-Effective Amendments to 23 historical Form S-8 registration statements on 18 June 2025.
Key facts:
- The amendments formally deregister any shares of common stock that remained unissued under a range of equity and savings plans, including the 2002 Stock Plan, 2005 Stock Incentive Plan, 2016 Omnibus Incentive Compensation Plan, several 401(k) and savings plans, and legacy plans covering salaried and USW-represented employees.
- Deregistration follows the closing of the merger with Nippon Steel North America, Inc. (“Parent”) under the Agreement and Plan of Merger dated 18 December 2023. Merger Sub was merged into U. S. Steel, making the registrant a wholly owned subsidiary of Parent effective 18 June 2025.
- The filing states that, consistent with the undertakings in each S-8, the company is terminating all offerings under the affected plans and removing the unsold securities from registration.
Investor takeaway: The action is an administrative step required after the completion of the acquisition; it does not introduce new financial data, alter consideration already received by former shareholders, or affect ongoing public-market trading because U. S. Steel equity is now privately held by Nippon Steel. The filing is therefore largely procedural with no direct valuation impact for public investors.
United States Steel Corporation (USS, symbol: X) has filed a series of Post-Effective Amendment No. 1 or No. 3 filings to 24 previously effective Form S-8 registration statements covering tens of millions of shares reserved for various employee benefit and incentive plans. The Amendments deregister all remaining unsold shares that had been authorised under those plans.
The action follows the closing of the merger with Nippon Steel North America, Inc. on 18 June 2025, whereby Merger Sub was merged into USS and the company became a wholly-owned subsidiary of the parent entity. Because the issuer’s publicly traded equity will no longer be issued under the referenced plans, the company is terminating the offerings and removing the securities from registration, fulfilling its undertaking under each Form S-8.
No new financial metrics are provided, and the filing is administrative in nature; however, it confirms legal completion of the transaction first announced on 18 December 2023. Investors should note that the company’s equity securities will now be held privately by the acquirer, and previously registered share reserves for employee stock and savings plans have been withdrawn.